Knox 2.56kWh Lithium-ion Battery 25.6V (Powerwall 3.0)
Rs 126,000 – Rs 135,000
Rs 61,523 per usable kWh
Price updated: 23 August 2026
Full specifications
| Brand | Knox |
| Model | LIO 2.56-IP20 |
| Electrical Specifications | |
| Battery type | Lithium |
| Battery chemistry | LiFePO4 |
| Capacity | 100 Ah |
| Cycle life | 6000 |
| Usable capacity | 80% |
| Nominal energy | 2.56 kWh |
| Nominal voltage | 25.6 V |
| Operating voltage range | 20.8-28.8 V |
| Max. parallel batteries | 4 |
| Continuous charging current | 100 A |
| Continuous discharging current | 100 A |
| Peak discharging current | 120 A |
| Depth of discharge | 80% |
| General Specifications | |
| Temperature range | Charge 0°C ~ +55°C / Discharge -20°C ~ +60°C |
| IP class | IP20 |
| Communication port | RS485 |
| Dimensions (W×H×D) | 180 × 450 × 350 mm |
| Weight | 25.1 kg |
| Mounting type | Wall |
Note: Knox recommend an 80% depth of discharge and quote cycle life at that same depth, so the usable figure and the cycle count are consistent with each other - which is not true of every brand here. 8S1P pack of A-grade prismatic LiFePO4 cells. 100 A maximum both ways with a 120 A peak, but Knox recommend a 50 A working current - size continuous loads against that, not the headline. Charge cut-off 28.8 V, discharge cut-off 20.8 V. The scalability differs from the Powerwall 3.1: this model takes up to 2 packs in series and 4 in parallel, where the 3.1 allows 8 in parallel but no series at all. If your design needs a series string, this is the one of the two that supports it. RS485 only - no CAN. LCD shows cell state of charge, voltage, temperature and alarm status. M6 terminals, metal case, 25.1 kg, IP20 indoor only. Certified UN38.3 and MSDS.